Looks like there are lot of jacked up reviews from the teachers who wants the students to enroll rather than the actual parents. I would be extra careful in trusting the reviews here. And because the cost is on the higher side it all depends on the teacher. If you are lucky you may get a good one. But the chances are 50/50.
From what I could get from the complaints here is that they are unprofessional and don’t hesitate to give false prmises.